Multimeeter AC ja DC pinge käik ja the mõõdetud pinge AC and DC type if correct, when mõõtmine DC voltage, the digital multimeter will show - number, pointer multimeter pointer pointer will swing in the positive direction.
The digital multimeeter DC pinge fail mõõtmine AC pinge näit tahe olla väga väike või põhimõtteliselt null, osuti multimeeter DC pinge fail mõõtmine AC pinge kiik on ka väga väike, or ei kiik. The same is true for the DC voltage measured by the AC voltage file of the multimeter. At this point should be noticed that the measured voltage type is not correct, should be re-selected multimeter correct AC and Alalisvoolu pinge tüüp käik.
In lisamine, for the power supply voltage to be measured is not clear, should be the the first high-voltage gear after the low-voltage gear järk-järgult switched to the reading resolution is the most appropriate, the most accurate reflection of the measured value of the gear to to safety.
You can first measure with AC voltage 750V, look at the display value, very small or basic does show, you can use DC voltage gear test!
First use the maximum AC voltage when the measurement, to determine the range in the appropriate range for accurate measurement, if the reality is not a stable value is the DC, change to the highest level of DC voltage to measure the approximate value, to determine the range of the range into the appropriate range for accurate näidud!
Kasutamine maksimaalne vahelduvvool pinge käik esimene positiivne ja negatiivne mõõtmine üks kord, kui kaks pinge on sama AC, ja vastupidi on DC ~!
AC ei ole on positiivne ja negatiivne poolused; DC on positiivne ja negatiivne poolused.
Very Simple, with a mechanical multimeter, from the largest gear to start gear reduction measurements, vastavalt, with the AC block and DC block measurements, while the AC file can not be measured, DC file can be measured is DC, the opposite is also the same. The actual structure of the device through the pin can be judged by its AC or DC.
